Chamberlain SL 1000-XI - Manual (Page 13)

Rev C Doc 6001194 (01-20259) 10 of 36
Figure 14. Limit Cam Setting.
NOTE: The following procedures are for FRONT drive gates. For MID and REAR drive
gates, reverse Left Gate and Right Gates procedures.
1. SETTING RIGHT GATE LIMIT CAMS (gate opens right, seen from the gate operator side)
1. Make sure that switch S1 is set to the "Right" position.
2. Turn on gate operator power switch.
3. Using manual OPEN and STOP, move the gate to its proper open limit position.
4. Rotate the Left cam ( until it just barely closes the limit switch.
5. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
6. Rotate the Right cam until it just barely closes the limit switch.
7. Open and close the gate to check the limit cam settings. If required, readjust the limit cams
until they are set properly.
2. SETTING LEFT GATE LIMIT CAMS (gate opens left, seen from inside the property)
1. Make sure that switch S1 is set to the "Left" position.
2. Turn on gate operator power switch.
3. Using manual OPEN and STOP, move the gate to its proper open limit position.
4. Rotate the Right cam until it just barely closes the limit switch.
5. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
6. Rotate the Left cam until it just barely closes the limit switch.
7. Open and close the gate to check the limit cam settings. If required, readjust the limit cams
until they are set properly.
H. GATE SENSITIVITY ADJUSTMENTS
The gate operator monitors both average and peak motor current. When the gate encounters an
obstruction, the gate operator senses the change in motor current and reverses the gate. Three
sensitivity adjustments must be set for each installation:
• Right gate motion (R69)
• Left gate motion (R160)
• Inrush current (R203)